My tastes change over time. There was a time when I would have said Metallica, Megadeth, TOOL, Pantera, and Lamb of God. Now, I don't enjoy any of these that much. I can still throw 3 of each though.
Metallica
Fight Fire with Fire, Shortest Straw, Enter Sandman (It's the first non-church song I ever heard)
Megadeth
Five Magics, Washington is Next, Wake Up Dead
TOOL
Lateralus, Ticks and Leeches, Eulogy (I hate the message, but love everything else)
Pantera
Domination, Cemetary Gates, Cowboys from Hell
Lamb of God
Hourglass, One Gun, Now You've Got Something to Die For
This week, based on what I'm learning/playing is as follows.
Jackson 5, No Doubt, The Eagles, Stone Temple Pilots, Aerosmith.
I'm not a super fan of these bands either, but I am listening to them often to learn their biggest hits.